Category:
NIHON KOHDEN Life Scope TR (BSM-6000 series), Life Scope PT (BSM-1733, BSM-1753, BSM-1763,
BSM-1773), Life Scope Telemetry, Life Scope J (BSM-9101) bedside monitor, Nihon Kohden SpO2 algorithm type,
semi-quantitative Waveform, Host
Monitor, MULTI connectors, discontinuous seamless monitoring, IntelliVue
X2, patient monitoring
In
this knowledge-sharing record we examined the history and performance of the Life
Scope BSM-1700 series transport monitors, noting the total absence of realtime data streaming during patient transport. The BSM-1700 monitor when changing from
role of input unit of a host monitor to being an independent transport
monitor should not compromise critical central monitoring connectivity at the system level.
Life Scope PT (BSM-1700 series) Transport Monitor
The
Life Scope PT is a 5.5-inch transport monitor transformed from a multi-parameter Input Unit
designed initially for configured Life Scope TR (BSM-6000 series) bedside monitors, and its use later extended to Life Scope J (BSM-9101) bedside monitor, Life Scope G9 (CSM-1901) bedside monitor, Life Scope G5 (CSM-1500 series) bedside monitors, and Life Scope G7 (CSM-1700 series) bedside monitors. The transport monitor was realized by the addition of touch-screen, storage memory and rechargeable battery to the multi-parameter input unit, doing
away the need to attach it to a monitor during patient transfer; this means the Life Scope PT transport monitor can also act as an Input Unit for the mentioned bedside monitors, known as the Host Monitor. The design is an adaptation to imitate the Philips
IntelliVue MMS X2; and because it is not a system design from scratch, something important at the system level is missing and the details will be discussed later in this same article.
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Configured Input Units made into a Transport Monitors imitating Philips IntelliVue MMS X2
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Before the Life Scope PT transport monitor, Nihon Kohden offered three types of Input Units used by Life Scope TR (BSM-6000) bedside monitors for export. The AY-663P Input Unit uses NIHON KOHDEN SpO2 algorithm while AY-653P Input Unit offers Nellcor OxiMax SpO2 algorithm, and the AY-633P Input Unit offers Masimo SET SpO2 algorithm. The AY-663P Input Unit is however, not marketed in the US market.
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Similarly configured input units with different SpO2 algorithms |
On the other hand, there are four models of Life Scope PT (BSM-1700 series) transport monitors, namely
1. BSM-1773 transport monitor (Nihon Kohden older SpO2 algorithms)
2. BSM-1763 transport monitor (Nihon Kohden current SpO2 algorithms)
3. BSM-1753 transport monitor (OEM SpO2 board supplied by Nellcor)
4. BSM-1733 transport monitor (OEM SpO2 board supplied by Masimo)
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Life Scope PT transport monitor with telemetry transmitter |
The only difference among the four models is the SpO2 algorithms.
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The four types of Life Scope PT transport monitors |
The two models (BSM-1773 and BSM-1763) on the left make use of Nihon Kohden SpO2 algorithms and their main difference
being the version of SpO2 algorithm. It should be clear the SpO2 algorithm for the USA market and ex-USA market are not the same version, the latest version is refrained from use in the USA market.
The
remaining two models on the right, namely BSM-1733 and BSM-1753 are
using SpO2 OEM boards supplied by Masimo and
Nellcor respectively.
Some
sales people are very excited about the bigger screen of Life Scope PT in the market but there is little knowledge why the configured multi-parameter Input
Units of Life Scope TR (BSM-6000 series) bedside monitors are so different and big that its sides can accommodate a 5.7 inch
screen?
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Why are the Input Units of Life Scope TR so big? |
The shown input unit is heavily loaded with monitoring hardware, and avoided for mention in product communication to the market, intentionally done to hide the fact the input units are configured.
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Many internal hardware are not made clear in product communication to the market
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The prominent feature of the AY-663P Input Unit (or Life Scope PT transport monitor) is the utilization of yellow MULTI-parameter sockets. These MULTI sockets do not accept ordinary measurement cables but only measurement cables that have NIHON KOHDEN parameter codes embedded in their yellow plugs.
Concept of the Multi-parameter Unit (MPU)
NIHON KOHDEN had identified five types of analog hardware that can be linked to the MULTI-parameter sockets (from the inside) and to make use of these hardware, a cable with the correct code on its plug must be inserted into one of the MULTI-parameter sockets. These cables with coded plugs are collectively cited as Smart Cables by the manufacturer and the codes are also known as parameter codes. Each MULTI-parameter socket selects only one channel of the hardware, except for Temperature allowing two channels of hardware to be selected.
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A measurement cable with a correct code in its plug can make use of any of the internally configured hardware shown here
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